Improvement of documentation + more examples as code.

I would like to have more examples in the documentation. In particular I am interested in examples shown in the galery
under [this link](https://dearpygui.readthedocs.io/en/latest/documentation/plots.html#gallery):
1. drag and drop data, figure #2
2. sliding data, figure #6 & #7
3. filled marker size with a line inbetween, figure #10

The code under [Color and Styles](https://dearpygui.readthedocs.io/en/latest/documentation/plots.html#colors-and-styles) is a bit ambigious:
`# create a theme for the plot
with dpg.theme(tag="plot_theme"):
with dpg.theme_component(dpg.mvStemSeries):
dpg.add_theme_color(dpg.mvPlotCol_Line, (150, 255, 0))
dpg.add_theme_style(dpg.mvPlotStyleVar_Marker, dpg.mvPlotMarker_Diamond, category=dpg.mvThemeCat_Plots)
dpg.add_theme_style(dpg.mvPlotStyleVar_MarkerSize, 7, category=dpg.mvThemeCat_Plots)

with dpg.theme_component(dpg.mvScatterSeries):
dpg.add_theme_color(dpg.mvPlotCol_Line, (60, 150, 200))
dpg.add_theme_style(dpg.mvPlotStyleVar_Marker, dpg.mvPlotMarker_Square, category=dpg.mvThemeCat_Plots)
dpg.add_theme_style(dpg.mvPlotStyleVar_MarkerSize, 4, category=dpg.mvThemeCat_Plots)`

The colors are added to the theme, but in reality - the default colors are used. I tried to change the color code of:
`dpg.add_theme_color(dpg.mvPlotCol_Line, (60, 150, 200))`
to
`dpg.add_theme_color(dpg.mvPlotCol_Line, (255, 0, 0))`
and the color of the symbols is not changed at all - the default colors are displayed.

**Describe the solution you'd like**
I would like to see the code for the examples as source code.